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4 papers · 2 filters
Resistive Magnetohydrodynamics of Jet Formation and Magnetically Driven Accretion
T. Kuwabara, K. Shibata, R. Matsumoto
We carried out 2.5-dimensional resistive magnetohydrodynamic simulations to study the effects of magnetic diffusivity on magnetically driven mass accretion and jet formation. We fo…
Observations of Ammonia in External Galaxies. II. Maffei 2
Shuro Takano, Naomasa Nakai, Kentarou Kawaguchi +1
The ammonia (J,K) = (1,1), (2,2), (3,3), and (4,4) transitions at 23.7 -- 24.1 GHz region were searched for in a nearby galaxy Maffei 2 to study relation between molecular abundanc…
Three-Dimensional Magnetohydrodynamical Accretion Flows into Black Holes
Mami Machida, Ryoji Matsumoto, and Shin Mineshige
Outflows and convective motions in accretion flows have been intensively discussed recently in the context of advection-dominated accretion flow (ADAF) based on two-dimensional (2D…
Robustly Unstable Eigenmodes of the Magnetoshearing Instability in Accretion Disk
K. Noguchi, T. Tajima, R. Matsumoto
The stability of nonaxisymmetric perturbations in differentially rotating astrophysical accretion disks is analyzed by fully incorporating the properties of shear flows. We verify…